[PATCH 1/9] arm: stm32mp: spl: add bsec driver in SPL

Patrick Delaunay patrick.delaunay at st.com
Tue Apr 21 17:11:20 CEST 2020


Add the bsec driver in SPL, as it is needed by SOC part number detection
to found the supported OPP.


Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

I already sent in unrelated serie

http://patchwork.ozlabs.org/patch/1264829/

Patrick


 arch/arm/dts/stm32mp15-u-boot.dtsi |  2 +-
 arch/arm/mach-stm32mp/Makefile     |  2 +-
 arch/arm/mach-stm32mp/bsec.c       | 11 ++++++-----
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/arm/dts/stm32mp15-u-boot.dtsi b/arch/arm/dts/stm32mp15-u-boot.dtsi
index 8f9535a4db..e0b1223de8 100644
--- a/arch/arm/dts/stm32mp15-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp15-u-boot.dtsi
@@ -40,7 +40,7 @@
 };
 
 &bsec {
-	u-boot,dm-pre-proper;
+	u-boot,dm-pre-reloc;
 };
 
 &clk_csi {
diff --git a/arch/arm/mach-stm32mp/Makefile b/arch/arm/mach-stm32mp/Makefile
index eee39c27c3..f29d6f795f 100644
--- a/arch/arm/mach-stm32mp/Makefile
+++ b/arch/arm/mach-stm32mp/Makefile
@@ -6,11 +6,11 @@
 obj-y += cpu.o
 obj-y += dram_init.o
 obj-y += syscon.o
+obj-y += bsec.o
 
 ifdef CONFIG_SPL_BUILD
 obj-y += spl.o
 else
-obj-y += bsec.o
 obj-$(CONFIG_CMD_STM32KEY) += cmd_stm32key.o
 obj-$(CONFIG_ARMV7_PSCI) += psci.o
 endif
diff --git a/arch/arm/mach-stm32mp/bsec.c b/arch/arm/mach-stm32mp/bsec.c
index 0d5850b4a9..98a950c640 100644
--- a/arch/arm/mach-stm32mp/bsec.c
+++ b/arch/arm/mach-stm32mp/bsec.c
@@ -473,20 +473,23 @@ static int stm32mp_bsec_ofdata_to_platdata(struct udevice *dev)
 	return 0;
 }
 
-#ifndef CONFIG_TFABOOT
 static int stm32mp_bsec_probe(struct udevice *dev)
 {
+#if !defined(CONFIG_TFABOOT) && !defined(CONFIG_SPL_BUILD)
 	int otp;
 	struct stm32mp_bsec_platdata *plat = dev_get_platdata(dev);
 
-	/* update unlocked shadow for OTP cleared by the rom code */
+	/*
+	 * update unlocked shadow for OTP cleared by the rom code
+	 * only executed in U-Boot proper when TF-A is not used
+	 */
 	for (otp = 57; otp <= BSEC_OTP_MAX_VALUE; otp++)
 		if (!bsec_read_SR_lock(plat->base, otp))
 			bsec_shadow_register(plat->base, otp);
+#endif
 
 	return 0;
 }
-#endif
 
 static const struct udevice_id stm32mp_bsec_ids[] = {
 	{ .compatible = "st,stm32mp15-bsec" },
@@ -500,7 +503,5 @@ U_BOOT_DRIVER(stm32mp_bsec) = {
 	.ofdata_to_platdata = stm32mp_bsec_ofdata_to_platdata,
 	.platdata_auto_alloc_size = sizeof(struct stm32mp_bsec_platdata),
 	.ops = &stm32mp_bsec_ops,
-#ifndef CONFIG_TFABOOT
 	.probe = stm32mp_bsec_probe,
-#endif
 };
-- 
2.17.1



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